class_docstr: Quantization Configuration Object
docstr: Constructs Config from a json file of parameters.
docstr_tok: ["Constructs","Config","from","a","json","file","of","parameters","."]
code: def from_json_file(cls, json_file):
      """Constructs Config from a json file of parameters."""
      with open(json_file, "r", encoding="utf-8") as reader:
          text = reader.read()
      return cls.from_dict(json.loads(text))
  
file_path: nlp-architect/nlp_architect/common/config.py
imports: import copy
  import json
  import abc
label_desc: Use image node_id 6 for calling the Config obj's underlying member method code with example usage: obj.from_json_file(cls, json_file) and returns: cls